Answer:
5.7
Step-by-step explanation:
Apply Pythagoren Theorem.
If we have a right angled triangle, we can apply
[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]
where a and b are the legs and c is the hypotenuse.
[tex] {4}^{2} + {4}^{2} = {c}^{2} [/tex]
[tex]16 + 16 = {c}^{2} [/tex]
[tex]32 = {c}^{2} [/tex]
[tex]c = 4 \sqrt{2} [/tex]
[tex]c = 5.7[/tex]
